Author: jfv
Date: Mon Jan 24 18:07:57 2011
New Revision: 217797
URL: http://svn.freebsd.org/changeset/base/217797
Log:
MFC 217707 Don't do flow control if parameter is unchanged
Modified:
stable/8/sys/dev/ixgbe/ixgbe.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
Modified: stable/8/sys/dev/ixgbe/ixgbe.c
==============================================================================
--- stable/8/sys/dev/ixgbe/ixgbe.c Mon Jan 24 18:05:49 2011
(r217796)
+++ stable/8/sys/dev/ixgbe/ixgbe.c Mon Jan 24 18:07:57 2011
(r217797)
@@ -5267,13 +5267,17 @@ static int
ixgbe_set_flowcntl(SYSCTL_HANDLER_ARGS)
{
int error;
+ int last = ixgbe_flow_control;
struct adapter *adapter;
error = sysctl_handle_int(oidp, &ixgbe_flow_control, 0, req);
-
if (error)
return (error);
+ /* Don't bother if it's not changed */
+ if (ixgbe_flow_control == last)
+ return (0);
+
adapter = (struct adapter *) arg1;
switch (ixgbe_flow_control) {
case ixgbe_fc_rx_pause:
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